DOVER — Nine witnesses testified Tuesday during the trial of Seth Mazzaglia, including a Portsmouth tugboat operator and a police officer who said he found a box in Mazzaglia’s apartment containing restraints, collars, a leather bra, a knife and condoms.

Mazzaglia is charged with murder in the Oct. 9, 2012, death of University of New Hampshire sophomore Elizabeth "Lizzi" Marriott of Westborough, Massachusetts and Tuesday’s testimony came during the fourth week of his trial.

Dover Police officer Scott Petrin took the witness stand Tuesday and testified that he found Marriott’s car in a UNH parking lot while she was reported missing. Petrin said there was a power cord and an owner’s manual for a GPS unit, but no GPS unit in Marriott’s car. He said he also saw a circular-shaped area of "residue" on her car’s windshield, which likely indicated that a suction cup for a GPS unit had been adhered there.

Petrin said he also found a power cord for an iPhone, but no matching phone in the car.

Mazzaglia’s former girlfriend, Kathryn "Kat" McDonough, previously testified that after Mazzaglia strangled then raped Marriott, the two of them disposed of Marriott’s personal items, including her phone and automotive GPS, before dumping her body off Peirce Island in Portsmouth.

Petrin also testified that he dusted parts of Marriott’s car, including door handles, for fingerprints. Under questioning from Assistant Attorney General Geoffrey Ward, Petrin said he determined the interior driver’s side door handle of Marriott’s car had been "wiped." Later on Tuesday, the defense and prosecution attorneys agreed that McDonough’s fingerprints were found on Marriott’s car.

Also testifying Tuesday was Brian Barbato, a neighbor of Mazzaglia’s at the Sawyer Mills Apartments in Dover. He said he met Mazzaglia and McDonough several times in passing and came to the conclusion that Mazzaglia was "very much in control" and the "dominant" of the two. Barbato, an assistant UNH football coach, said McDonough "would stare at the tops of her shoes," or in one instance, continue folding laundry in spite of his efforts to engage her in conversation.

Christine MacEachern — stage manager of an October 2012 Garrison Players production of "A Midsummer Night’s Dream" — testified that she received a text message from Mazzaglia the night Marriott died saying he was unable to attend a rehearsal. MacEachern said that Mazzaglia had a role in the play, that McDonough had a minor part in the same play and that Mazzaglia had listed himself as the contact person for all communications with McDonough.

"He was her ride and her transportation," MacEachern said.

Page 2 of 3 - Under cross-examination by defense attorney Melissa Davis, MacEachern said she thought it made sense that Mazzaglia was the contact person for McDonough because he had the bigger role, they lived together and rode together to rehearsals.

Also testifying Tuesday was Randall Bolduc, who said he had walked his dog on Peirce Island hundreds of times before the morning of Oct. 10, 2012, the day he saw unusual "drag" marks leading from a parking lot to an overlook area.

"It just didn’t look like anything I’d seen before," he testified. "It merited me taking a second look."

McDonough previously testified that she and Mazzaglia dragged Marriott’s body along that path and dumped her off a cliff into the Piscataqua River.

Bolduc said he reported the drag marks to Portsmouth Police on Oct. 15 and showed officers where they were, but the marks in the ground were gone by then.

An expert on the subject of "intimate partner abuse," Dr. Scott Hampton testified in general terms about patterns of domestic abuse and control, but did not address specifics related to the murder allegations. Prosecutors allege Mazzaglia controlled McDonough by isolating her from her family and taking a dominant role in their relationship.

Dover Police detective Timothy Burt testified Tuesday that he was called in to work Oct. 12, 2012, when he was told Marriott may have died in apartment No. 341 at the Sawyer Mills Apartments, where Mazzaglia and McDonough lived. He said he and other officers retrieved two bags of trash from an outside Dumpster and found the contents included a used condom and clothing.

Burt told jurors those items were sent to the state crime lab, along with DNA samples from Marriott’s mother, Mazzaglia, McDonough, and a hairbrush and toothbrushes belonging to Marriott.

Burt also testified that he seized several computers from Mazzaglia’s apartment and spoke about gaps in Internet usage on them during the time when Marriott was killed. He also told jurors he was given letters written by Mazzaglia to his father and reconstructed a torn-up letter that was found among Mazzaglia’s property.

Burt said he put the pieces of the torn letter back together and discovered it was a suicide note, which the officer described as a "freak-out letter." No further testimony about the letter was offered Tuesday.

Davis asked Burt about a box found in the apartment and he confirmed it contained "sexual items" including a leather bra, chains, multiple collars, a knife and multiple leather belts and condoms. Burt also said his department sent men’s underwear to the state crime lab, but not women’s underwear found on scene.

The apartment was described as having items and clothing everywhere, with a clear spot next to a futon bed, where McDonough said Marriott was murdered. Carpeting from that area was removed and a cadaver dog was brought in "to see if it would alert," Burt said. The dog’s alert would have indicated a death occurred there, but the dog did not alert, the officer testified.

Page 3 of 3 - A black robe was not seized or tested, Burt said, nor were black gloves found in the Dumpster and inside the apartment. McDonough previously reported Mazzaglia was wearing black gloves when he strangled Marriott to death, then testified at trial that she couldn’t remember if he was wearing them at the time or not.

The Dover officer said his search of computers seized from Mazzaglia’s apartment showed that starting on Oct. 10, there were Internet searches to fetish sites, as well as the Ashley Madison site, a self-described dating site for people married or in other relationships.

Also testifying Tuesday was Chester Police officer Nicholas McLellan, who said he took a missing person’s report from Marriott’s father on Oct. 11, 2012, and began investigating. McLellan said his leads took him to Mazzaglia, who he called that night and who sounded "extremely nervous." Mazzaglia told the officer he went out for a jog the night Marriott disappeared and hurt himself so it took longer than usual.

"He seemed like he wanted to distance himself from that apartment," McLellan testified.

Portsmouth harbor pilot Peter Johnson testified about currents and tides in the Piscataqua River the night Marriott was allegedly left dead there. He testified that the tide was going out at midnight Oct. 9, 2012, and that the layers of currents are so turbulent they can sometimes move ships. The river bed, he testified, is littered with debris dating to the 1940s, when part of nearby Henderson’s Point was blown up by the U.S. Army Corps of Engineers to make more navigating room for passing ships.

McDonough pleaded guilty 11 months ago to assisting with the disposal of Marriott’s body and lying to investigators. She’s serving 1˝ to three years in prison, in exchange for cooperating with authorities and offering testimony during Mazzaglia’s trial. On Monday, she ended 10 days of testimony and cross-examination.

Mazzaglia is charged with two "alternate theory" counts of first-degree murder, one count of second-degree murder, two counts of hindering apprehension for murder, witness tampering, falsifying physical evidence and solicitation of escape.

Prosecutor Peter Hinckley argues that Mazzaglia strangled Marriott from behind with a rope before he raped her and then plotted to dispose of her body and evidence. That is the same story McDonough has been telling at trial and that she told to a grand jury, leading to the promise of immunity and a light prison sentence.

Barth alleges McDonough killed Marriott during consensual bondage sex by sitting on her face for 10 to 15 minutes while Marriott was bound with rope. McDonough previously told that story to Barth’s investigator, but now calls it a lie.